Type-writing machine.



H. H STEELE.

TYPE WRITING MACHINE.

APPLIGA'IION.1ILED FEB. 26, 1006.

Patented. M 27, 1909.

3 SHEETS-SHEET 1.

Hi2 AFTEIRNEY H, H. STEELE. TYPE WRITING MACHINE. APPLICATION FILED FEB26, 1906. A

Patented July 217," 1909;

a SHEETS-SHEET 2.

I NVENTUF? I vx/wwcssca 5%Z/Lw' ILH. STEELE.

TYPE WRITING MACHINE.

APPLICATION FILED FEB. 26, 1906.

Patented July 47, 1909.

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SSHEETS-SHEET 3.

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WETNEIEEEEE Hrs ATTQRNEY UN t i 'i d i l ifi PriZiENlf @FFMJE HERBERT H.STEELE, OF SYRACUSE, NEW YORK, ASSlGNOR- TO THE MONARCH TYPEWRITERCOMPANY, OF SYRACUSE, NEW YORK, ACORPORATION OF NEW YORK.

TYIE WRITING MACHINE,

Specification of Letters Patent.

Patented July 2'7, 1909.

Application filed February 26, 1.906. Serial No. $303,056.

To all whom it may concern:

Be it known that I, Hennnnr H. STEELE, a citizen of the United States,and resident p ,w or oyiacuse, in t it county 0 none aga and State ofNew York, have 1nventcd-certam new and useful improvements in Type liritmg li ilachnies, of which the tollowmg 1s a specification.

This invention'rolates to improvements in carriage-remrding devices fortypewriting machines, and consists of the features of construction and.combinations and arrangements of parts which are hereinafter de scribedand specified in the claims.

in the accompanying drawings in which like reference numerals designatelike parts in diiferent'views, Figure 1 is a rear and sectionalelevation of the frame and parts oi? the mechanism of a hiionarehtypewriting machine to which CZIl'IIZQQ-L'Ellttl'tli11 ana ratusembodying the invention is applied; Fig. 2, a vertical section, on theplane indicated by the broken line near the of Fig. 1, of said frame andparts 01": the'meelranism of the machine,-the sectional plane being seenfrom the right side of the machine. Fig. 3, an enlarged vertical sectionof the upper reanpart of the machine, the section being at right anglesto the axis of the platen, and the sectional plane being seen i rtnn,the left. side oi. the machine; Fig. '-i, a plan if a fragment of thetop-piatc and ot a hollow device mounted thereon which forms part of thecarriage-rotarding apparatus; Fig. 5; a or :cction oi said hollow deviceand another c-ot perative rotary device confined therein; Fig. (3, alongitudinal row; and Fig. 10, a view of the exterior of said hollowdevice developed.

7 Although the drawings illustrate this invention applied to a Monarchmachine, it is to be understood that it .is also applicable to numerousother machines, including such as are called under-stroke machines, wellas visible-writing machines.

The carriage-retardi11g mechanism or epparatus in which the invention isembodied is attached to the top plate of the machine near its rear edgeand on the right, preferably, of a vertical plane containiiig the axis.oi" the escapen'ientpinion. Thc frame of the machine is composed of thebase 1 and four posts 2, only three of which are shown, and the topplate 3. On the back part of the top-plate are two standards 4 which arefastened to the top-plate and to which upper and lower guide-rails 5 and(3 are attached by screws 7, these guide-rails having in them grooves 8and 9 extending throughout the length of the rails; The carriage 10, inwhich is mounted the platen 11, has formed on it grooved guides 12 and13, which extend from end to end of the carriage, the grooves i l and 15o f these guides forming with the grooves 8 and 9 of the rails 5 and (3,ball or roller channels in which are shown anti-friction balls 16, 17.The carriage is thus supported by the rails and 6 and is movable on theballs in opposite directions over the top-plate 3; The guides 19 and 13are connected together byvwebs l8, and between these guides extend arms19 which are pivoted to the ends of the carriage, and to whose rear endsare atlixed the carriage rack 20 which is movable up and down on thepivots 21 of the arms 19. SpringsQiZ, acting on the arms of the rack,tend to keep the rack in the position in which it is shown in Fig. thatbeing its normal. position.

The ra k 20 normally engages a pinion 23 which fast on a shaft, having abearing in :1 bracket 24-, aitixcd to the top plate 3, and

on the rear end of this shaft is an escapement wheel 25, arranged to co-act with the feeddo'gs 2-6 and 27 (shown in dotted lines in Fig. whichare mounted on a dog-rocker 28, whose rock-shaft 29 is pivoted at itsends between lugs on a bracket 30 ai'fixed to and extending downwardfrom the top-plate 3. On the rock-shaft 29 is a spring 31 which tends tokeep the steppingdog 27 in engage ment with a tooth of the escapemcntwheel An arm 32, fast on the dog-rocker, extends in front of therock-shaft 29, and to. the front end of this arm is secured a link 33which extends downward therefrom to the universal bar of the machine.Whenever the "universal bar is actuated by depressing a character-key orspace-key, the front end of the arm 32- is drawn downward lav the link33, the,stepping dog 27 is swung forward the rod 37, and on the rodholdingdog 26 is moved into engagement with'the' escapement-wheel, andwhen the universal bar rises after the key has been released, thestepping dog 27 reengages with the escapement wheel and the carriageadvances a letter-space distance. But if desired a reverse-feedescapement may be used instead of that above described.

To the standards l are rigidly attached rearw rdly extending arms PA,in, which a stop-bar is journalcd at its ends. On the right end of thisstop-bar, outside of the adjacent bracket 34, is a crank-arm whichnormally extends both forward and upward from the stop-bar and to whichis pivoted at its front end a rod or link 3'7, which extends downwardfrom the crankarm, through the top-piate and into the base 1 of themachine. A collar 38, having on it a, projection 39, is fastened by ascrew to 37, between the collar 38 and the part 41 of the base, is acoil-spring T2 which presses upward against the collar, and on the rod37 above the topplate 3 is a collar 43 which is fast onv the rod. Thecollar 38 is so attached to the rod '37 that the projection 39 of thecollar extends forward from the collar and rod. The

stop-bar 35 has cut in it on opposite sides slots or recesses 44 atletter-space distances adjustable on the bar, each "tabulator-stop beingformed to engage a recess at the back of the bar and another at thefront of the bar. Each tabulator-stop has a lug l6 which extends forwardand upward from the body of the stop secured to the stop-bar, when thebar is in its normal position, in which it is ordinarily held by theupward pressure of the spring, 4-2 against the collar 38 0nthe rod 37. Astop 47, which is rigidly-attached to the back of the carriage 10 aboutmidway between the ends of the carriage, extends backward neariy to thestop-bar 35, its rear end being out of alineinent with the lugs 4&6 ofthe tabulator-stops when the stop-bar is in its normal'position, andthen being movable by the carriage past the stops 45' and under the lugs46.

The rod 37 ispivot'ed at its lower end to a lever d8, whose fulcrum is ascrew 49 passing through its front end and into a b ss 50 formed on theframe of the machine.

' this lever is an upwardly extending car 51 in which is a slot 52. Akey-lever 53, having on it atabulator key 54, is pivoted at its rear endby a screw 55 to a lug 56 formed on the under side ofthe roof 4-1 of thebase ,ZKl 58 near its front end. A pin 59 fixed on the key-lever 53extends through the slot 52 in the car 51 of the lever -18. Thecon-strum tion is such that when the key is depressed the rear end ofthe lever 48 is forced downward and the link I37 rocks the bar 35, bringing the lugs 4H?- into the path of the stop 4?.

A lever having arms (3t)----( t is pivoted by a shouldered screw (32 to:1 lug; 3 on the under side of the top-plate ii, and on the screw 32 isa coil-spring (3-1- which bears at one of its ends against the lug andat its other end against the lower edge of the arm (30 of the lever,this arm of the lever extending in front of the rod 3'7 and under theprojection 239 of the collar 2-58, and having on its upper edge a stop 5which makes contact with the under e of the top-plate when the lever inits normal position, where the spring (34- tcnds to keep it. A leversubstai'itially the same as this has been used in the Monarch machine toactuate a rack-lifting device, operative to raise the carriage rack outof engagement with the escapementpinion, and thus to release thecarriage from the control of the escapement. Since, however, a part ofthe carriage retarding mechanism herein shown is operative through thelever (30-431 to lift the carriage-rack from the pinion 23, the liftingdevice heretofore employed is not necessary in a machine provided withthis carriage-retardirig mechanism. i

The retardinganechanism proper consists of pneumatic apparatus in thenature of an air-pump, said apparatus comprising two cooperativedevices, one of these being arranged to be rotated by the carriage, andone of them containing an air-chamber whose wall surrounds and makescontact With the other device. The pneumatic apparatus is preferablyconstructed and arranged as it is shown herein, although it is apparentthat for this particular apparatus a modification thereof mightbe'substituted. The rotary device of the ap nlratus shown in the presentinstance is ooniined in the other device. The latter consists of ahollow cylindrical part (H3 having on it an extension (5? on which areformed bosses G8, the cylindrical part 66 being closed at its rear endby a screw plug (39. This device is pivoted by shouldered screws 70 toand between the sides 71 of a support whose base 72 rests on the topplate :1 and is attached thereto by a screw 74-, the screws 70 extendinginto the bosses (i8 and the whole device being movable on the axis whichcoincides with the axes of the screws 70. To the extension (37 near itsfront, end a yoke 75 is pivofd by pins 76, this yoke being on theuppcrcnd of a link YT-which extends through the top-plate and is pivotedat its lowcr'end to th arm (31. of the lever 60-G1. In the extension (37of this pivoted device is a round hole T8 in which is a shaft CID :25drical surface of the part (36 of'the other 479, the extension 67forminga bearing for this shaft whose axis is above and parallel theescapeinent-pinion 23, and the hollow device described is in theposition shown in Fig. 2, this being its normal position. It is movablefrom this position by the lever 60(i1 act-ing'on it through the link 77and yoke75 to. the position shown in Fig. 3, and

when it is thus moved the pinion 80 engages with the carriage-rack andlifts this rack out of engagement with the escapement-pinion,

so that the pinion 80 and shaft 7 9 niaythen be rotated by the action ofthe carriage rack. The rotary device includes a cylindrical part 81WlHCll 1s contained in the cylindrical part 66 of the other device andwhich is fast on the shaft 79, its axis coinciding with that of theshaft, and its cylindrical surface being tangent to the internal.cylindevice, and these cylindrical surfaces receding from each other onopposite sides of the line along which they meet. The ends of thecylindrical part 81 of the rotary device fit against the ends of thecylindrical part (36 of the other device. The rotary cylinder 81 has twodeep slots 82 cut therein longitudinally thereof, said slots being onopposite sides of the axis of the cylinder, parallel to each other, andopening on opposite sides of the cylinder. In each of these slots thereis seateda' blade orwing' 83, of a length essential that. each wing 83substantially equal to the length of the cylindent the wing beingadapted to slide in and out as the cylinder is rotated. Said wings arepressed outward to keep their outer edges constantly pressed against theinner cylindrical surface of thepa'rt (36 by coll-springs 84: containedlll holes 85 drilled in the part 81, the holes extending through oneface of each slot but not through the other face, as appears in Fig". 7,for it is should so fit one face of 'theslot'containing the wing as toprevent air from passing freely from one "side of the wing to the other.In the; cy

lindrical wall of the part 66 are two small air-passages or ports 86,two others 87 larger thanthe passages 86, and two others 88 larger thanthe passages 87, these passages I being arranged in pairs and one ofeach painJocing on one side and the other on the opposite side of theplane which contains hotlnthe axisof the-shaft 79 and the line alongwhich the cylindrical part 8i of the rotary device meets the internalcylindrical surface of the port 66 of the other device. A thin endlessbai id or sleeve 8.9 surrounds and is secured on -the part 66 ofthe'hollow device between the flange 90 at the front end. thereof and asiinilar flange 91 formed on the plug (39. This sleeve closely fits theexternal surface of the part 66 but is inovable on it. roughened orknurled to enable it to be easily turned with the hand. In this sleeveare three pairs of holes 93, ill. and D5, and on the sleeve close to thefront edge are marks designated 0 it 2 and and on the flange 90 isa-shnilar mark 96, 'these marks being; so. arranged that when the markOlregisters with the inark 96 all of the airpassages in the wall of thecylinder (iii are closed the sleeve 89, and that when the mark lregisters with the nark 96 then the holes 9 3 in the sleeve 89 reg sterwith. the holes 86 in the hollow cylinder,and that when the mark 2registerswith the mark J6 the holes Min the sleeve register with. theholes 87 in the cylinder, and that when the mark 3 registers with themark 96 the holes in the sleeve register with the holes 88 in thecylinder, and that only two of the holes in. the sleeve reg 'ster withholes int-he cylinder at the same time. r

The machine contains a spring drum 97 Portions of the sleeve arethelatter lever and the rod 3'? on the crankarm 36, the lugs 46 on' thetabnlator-stops .45 being moved downward'into alinenient with the stop47. on the. carriage. At the same time the projection on the collar 38fixed to the rod 37 forces downward the arm 60 or the lever 60-61, andthe link 77 is raised by the arm 61 of this lever, so that the device(Sh-67 is moved on its pivotal axis to the position in which it is shownin Fig. The

carriage-rackthen engages the pinion S0, and is out of engagement withthe escapeinent-pinion from which it has been raised by the action ofthe other pinion on the rack. The rod 37 is ,drawn downward until thecollar all meets the top-plate 3, and while this collar is held bypressure on the tabulatorkey in contact with the top-plate, the lugs 4-6on the st ps 45 are kept in the path of the stop 4-7, and the device66-437 and the pinion 80 and the a. fringe-rack are kept in thepositions shown hrFig! 3. As soon as the rack 20 is thus disengaged fromthe escapement-pinion the carriage is drawn to ward the left by thespring-drum 9?, and the pinion 8(),'shaft 79 and the rotary devicecontained in thehollow cylinder 66 are turned together on the aids, theshaft by pas.

the action of the rack 011 the pinion 80. The carriage continues totravel and to so actuate said rotary device until the stop 47 meets thelug it of one of the ta'bnlator-stops 45. Then the talmlator-hey isreleased where upon the key and stop-bar are restored to their normalpositions by the springs 57 and t2, and as the collar on the rod 37rises, the spring (3-1- restores the lever Gtl--6l to its normalposition, the front end of the device oc -c7 and the pinion 80 beingdrawn down ward by the link 77 to the positions shown in Fi 1, and thecarriage rack descends to tho 'apenicnt-pinion 2b with which itreengages just before the talmlatorstop leaves the stop 47.

heir the rotary device of the pneumatic apparatus is actuated asdescrihethair is compressed in front of and rarefied behind e ch of thewings 83 during everyrotation of the shaft 7 9, and the compressed airreacting on the wings otljers a yielding resistance to the movement ofthe carriage. The

'arriarge is retarded most when all of the airpassages 86, 87, 88 areclosed, it then being necessary for the an. to leak from one side ofeach wing to the other as the outer edge of the wing approaches andrecedes from the line along which the cylind 'ical surfaces oi the partsand Si meet, and since the cylindrical part and wings oi therotary-device tit closely against the end and cylindrical -'all of theother device, the air leaks so slo 'ly past the wings that, it all ofthe air cs are closed, a strong and slowly yielding resistance opposesthe motion of the carriage. the air-passages 86 are opened, air isforced through one of them from the .c'lindcr no. and air enters this clinder through the other, and the motion of the car-- riege is then lessatiectcd than it is;.uuder the conditions previously stated. By open inthe airnusagos Si or SS the resistance eta-mi to the carriage may befurther rc din-ed. Air issues from and enters the c yl iiitici' in;through the p: iges 8i and 88 as;

' it ones through the passa es S6, anti obviuusly air is compro d lossit the passages as are opt-n than it is it the passage.--; S? are open,and lo s it the passag siSi are open than it. is it the pa sages 8t)are-open, so that;

the larger the opened pa sages are the the carriage retarded.

l3 means oi the apparatus described the carriage may l c ,so rl tance itmay travel tree from the control of the. tSCtlPtiHtlli-l1100ll21lllSlll,as to prevent the 'nun-hintfrom being injured and to render the shockand noise slight when the carriage is arrested by tabulator-stops orother similar devices.

It is to he understood that the invention claimed herein may be embodiedin mechanism (littering indetails of construction or arrangement(it-parts from that which has ardcd, whatever disvbeen specificallydescribed aoove, and that it may be applied to machines containingdenominational or decimal tabulating 1nechanlsm, instead of theparticular tabulating mechanism shown herein, or other forms of c(liinn1-spa(:ing mechanism.

While the rotary device herein shown and described includes a pair ofwings, it will be seen that the retarding appa 'atus would be operative,although its action would be more impulsive, if one of these wingsshould he removed from it, and that a single wing extending through thecylindrical part 81 of the rotary device and hearing at its outeredgesagainst. the wall of a chamber containing said device, might besubstituted for this pair of spring-pressed wings. Moreover, the wall ofthe hollow device might have in. it only a single a'inpassage throughwhich air could issue from the air-chamber near the line along which thecylindrical surfaces ofthe two devices meet, and on that side of theline on which the air is compressed, for enoughair would enter thehollow part through such a passage and leak past the wing or wings torender the apparatus effective to retard the carriage to some extent. 1f

\Vhat I claim as new and desire to secure by Letters Patent,

1. In-a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatus comprising two cooperativeair-compressing devices, one of these devices being arranged to berotated by the carriage, and one of them containing an air-chamber whosewall surrounds and makes contact with the other device at the ends andfrom end to end of each of said devices, said apparatus also comprisingmeans adjustable by hand and effective to vary the resistance exerted onthe carriage.

2. In a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatus comprising two cooperativeair-compressing devices, one of these devices being arranged to berotated by the carriage, and one of hem including .wing movable inwardand outward on the body of the device and in contact with the otherdevice, taining a air-chamber in which the other device is confined,said apparatus also comand one of said devices con-.

prising means adjustable by hand and effect,-

'tion with the carriage, of pneumatic rarriage-retarding app ratuscomprising 11 rotary device and another device coiLperativc therewith tocompress air, said rotary-device being arranged to be rotated by thecarriage, and the other device containing an air-chamber whose wallsurrounds said rotary device and makes contact therewith at the ends andfrom end to end of each of said devices and contains an air-passagecommunicating with said air-chamber, said ap niratus also comprisingmeans adjustable by hand and eifcctive to obstructthe flow of airthrough said passage.

5;. In a typewriting machine, the combination with the carriage, ofpnemnatic carriage-retarding apparatus comprising a rotary device andanother cooperative device, said rotary device being arranged to berotated by the carriage, and one of said devices containing anair-chamber and an. air-passage leading from said chamber, the wall ofthe chamber surrounding the other device and making contact therewith atthe ends and from end to end of each of said devices.

(3. In a typewriting machine, the combina tion with the carriage, ofpneumatic earriage-retarding apparatus comprising a rotary device andanother cooperative device, said rotary device-being managed to beretated by the carriage, and one of said devices containingan-air-chamber and airpassages of diti'erent sizes leading from saidchamber, and having means for closing some or all of said air-passages.

T. in a typewrit-ing machine, the combination with the carriage, ofpneumatic car riaretarding apparatus comprising two cooperative devices,one of these devices being arranged to be connected with and actuatedby-the carriage and one of them containing an air-chamber andair-passages of difierent sizes leading from said chan'iber, the 'wallof the chamber surrounding and making con tact with the other device,and the device coi'itaining said chamber having on it means for closingsome or all of said air-passages.

8. In a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatus comprising a rotary device andanother cot perative device, said rotary device being arranged to berotated by the carriage, and one of said devices containing anair-chamber and air-passages of different sizes leading from saidchamber, the wall of the chamber surrounding and making contact with theother device, and

the device containing said chamber having on it means for closing someor all of said a ir-pz-uesa 7 9. in a typewriting machine, thecombination with the carriage, of pneumatic carriage-retarding apparatuscompr ising two coiipera tive devices, one of these devices containingan air-chamber, and the other being confined in said chamber andincluding a part with a cylindrical surface which makes coi'itact, alonga straight line with the wall of said chamber and which is out ofcontact with said wall on opposite sides of said straight line, and oneof said devices being arranged to be connected with and actuated by thecarriage.

10. In a typewriting iachine, the combination with the carriage, ofpneumatic carriages" 'ding apparatus comprising a rotary de ice andanother cooperative device, said rotary device being arranged to berotated by the carriage and one of said devices including a part whichhas a cylindrical surface, and the other device containing an airchamberin which the device with said cylindrical surface is confined, saidcylindrical surface making contact along a straight line with the wallof said chamber and being out of contact: with said wall on oppositesides of said straight line. I I

11. in a typewriting machine, the combination with the carria e, ofpneumatic carriage-retarding apparatus comprising a rotary device andanothercoiiperative device, said rotary device being arranged to berotated by the carriage, and one o'i flsaid devices including-ea partwhich has a cylindrical surface, andthe other device containing anair-chamber in wliichntl ie device with said cylindrical surface isconfined, said cylindrical surface making contact along a straight linewith the wall of said chamber and being out of contact with said-wall onopposite sides of said straight line, and the wall of said chamberhaving in it aiivpassages coinniunicating with said chamber on oppositesides of the "plane containing said straight line and the axis ofsaidrotary part.

19. in a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatus compris ng two ccope 'ativedevices, one of these devices containing an air-chamber, and the otherbeing confined in said chamber and including rela-. tively movableparts, one of which has a cylindrical surface which makes Contact alonga straightline with the wall of said chamber and which is out of contactwith. said wall on opposite sides of said strai ht line, and one of saiddevices being arranged to be rotated by the carriage.

13,111 a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatuscomprising a rotary device andanother cooperative device, said rotary device being arranged to be'rotated by the rr'iage, and one of said devices including a slottedpart which has a cylindrical surface and including a wing movable inwardand outward m the slotot' said slotted part, and the other devicecontaining an airchamber in which the device including the slotted partis confined, said cylindrical surface making contact along a straightline wlth the wall of said chamber and being out ct contact with saidwall on opposite sides of said straight line, a d the wall of saidchamber having in it air-passages communicating with said chamber onopposite sides of the plane containing said straight line and the axisof said rotary device.

14. In a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatus comprising two cooperativedevices, one of these devices being arranged to be rotated by thecarriage and one of them including a pair of springprcssed wings movableinward and outward on the body of the device andin contact with theother device, and one of'said devices containing an airchamber in whichthe other device is confined.

15. In a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatus comprising two coiiperativedevices, one of these devices being arranged to be rotated by thecarriage, and one of them including slots and a pair of springpressedwings arranged to slide in said slots, and the other containing anairchamber whose wallsurronnds and makes contact with the deviceincluding said wings.

16. In a typewriting machine, the combination with the carriage, ofpneumatic car- :rizwe-retardin anaratus comprisin two D b I;

cooperative devices, one of these devices con taining an air-chamber.and the other being confined in said chamber and including a slottedpart with a cylindrical surface which makes contact along a straightline with the wall of said chamber and which is out of contactwith saidwall on opposite sides of said straight line and including a pair ofspring-pressed wings movable inward and outward in the slots of saidslotted part, and one of said devices being aranged to be rotated by thecarriage.

17. In a typewriting machine, the com bination with the carriage, ofpneumatic carriage-retarding apparatus comprising two cooperativedevices, one of these devices containing an air-chamber, and the otherbeing confiner said chamber and including a slotted part with acylindrical surface which makes contact along a straight line with theWall of said chamber and which is-out of contact with said wall onopposite sides of said straightline and including a pair of springressedwings movable lnward and outwar in the slots of said slotted part, and

one of said devices being arranged to berotated by the carriage, and thewall of said chamber having in it air-passages commnni- 18. In at-ypewritmg machine, the com-' bination with the carriage, of pneumaticcarriage-retarding apparatus comprlsmg two cooperative air-compressingdevices, one of these devices being arranged to be rotated by thecarriage and each of them includin a cylindrical part, one of saidcylindrictil parts being hollow and containing the other, and the innercylindrical surface of the outer part being tangent to the cylindricalsurface of the inner part and receding therefrom on opposite sides ofthe line of contact and said apparatus also comprising means adjustableby hand and effective to vary the resistance exerted on the carriage.

19. In a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatus comprising two cooperativedevices, one of these devices being arranged to be rotated by thecarriage and each of them including a cylindrical part, one of saidcylindrical parts being hollow and containing theothcr, and thc innercylindrical shrface of the outer part being tangent to the cylindricalsurface of the inner part and receding therefrom on opposite sides otthe line of contact, and the wall of said hollow part having in it anairpassage.

20. In a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatus comprising two cooperativedevices, one of these devices being arranged to be rotated by thecarriage and each of them including a cylindrical part, one of saidcylindrical parts being hollo\v an'd containing the other, and the innercylindrical surface of the outer part being tangent to the cylindricalsurface of the inner part and receding therefrom on opposite sides ofthe line of contact, and the wall of said hollow part having in it anairpassage on each side of said line of contact.

21. In a typewriting machine, the combination with the carriage, ofpneumatic carriage-retarding apparatus comprising two cotiperativedevices, one of these devices be ing arranged to be rotated by thecarriage and each of them including a cylindrical part, one of saidcylindrical parts being hol-- low and containin the other, and theinnercylindrical surfac of the outer part being" tangent to the cylindricalsurface of the inner part and receding therefrom on opposite sides ofthe line of contact, and the wall carriage-retarding apparatuscomprising two cooperative devices, one of these .devices being arrangedto be rotated by the carriage and each of them including a cylindricalpart, one of said cylindrical parts being hollow and containing theother, and the inner cylindrical surface of the outer part.

23. in a typeWriti-ng machine, the combination with the-carriage, ofcarriage-retarding means including'a shaft arranged to be rotated by thecarriage, and pneumatic coinpressing devices, one of these devices including a pait which is fast on said shaft, and one of them containingan air'chamher whose Wall surrounds the other device and mahescontacttherewith at the ends and from end to end of each of said devices, saidappara tus also comprising; means adjustable by hand andeifectwe to varythe resistance exerted on the carriage.

2d; ln a typewriting machine, the combination with the carriage, ofcarriagewtarding means including a shaft arranged to he rotated by thecarriage, and pneumatic apparatus comprising a rotary device and anothercooperative device. said rotary device.includinga part which, is fast onsaid shaft, and one of said devices containing an air-chaniher and anair-passage leading from said chamber, the Wall of the chambersurrounding the other device and making; con-.

tacttherewith at the ends and from end to end of each of said devices. j

in a typewriting machine, the combination with the carriage/{ofcarriage-retarding means including a'shaft arrangedto be rotated by thecarriage, and. pneumatic apparatus comprising a -rotary' device andvanother (inoperative device, sald-rotary device including a partwhichisfaiston said shaft and one of said devices containing anail-chamber: and air-passages offditferent sizes leading: from. saidchamber, the wallfothe chamhersur "sanding and making contact with theother device, andgthe device.

containing said chamber having on it, means for closing some or all ofsaid a1r-passages 26. in a typewriting machine, the coincarriage, ofcarriage-rs bination with ti 3 tarding means including a shaft arrangedto be rotated by the carrian and pneumatic apparatus comprising twocotiperative devices, one of these devices being connected with andmovable by said shaft, and one of them containing an air-chamber andairpassages of difierent sizes leadin'fromsaid chamber, the Wall of thechamber surroundmg and making contact With the other device, and thedevice-containing said chamber having on it, means for opening andclosing said air-passages. 24. In a. typewriting machine, thecombination with thecarriage, 0f carriage-retarding means includinga'sha-ft-arranged to e rotated by the carriage, and pneumaticapparatuscomprising two 006 erative aircampressing devices, one 0ft esedevices containing an air-chamber, andthe other being confined in saidchamber andvincluding a part with aficylindrical surface which makescontact alon a straight line with the' wall of said chamher and which isout of I contact with said wall on oppos te sldes of 1; said, straightline, and one 'of said dBVICGS- being connected with and movable by saidshaft and said apparatus also comprising means adjustable by hand andeffective to-- vary 'the resistance exerted on the carriage.

28. In a typewriting machine, the combination with the carriage, ofcarriage-retarding means including a shaft arranged to be rotated by thecarriage, and pneumatic apparatus comprisng a rotary device andanothercotiperative device, said rotary dev ce including a part which is faston said shaft and has a cylindrical surface, and the" other devlcecontaining an air-chamber 1n.

whichjsaid rotary device .'is confined, said cylindrical surface makingcontact along a siralg'l'it line with the Wall'of said chamber ice.

and being out of contact withsaid Wall on" opposite sides of saidstraight line, and the wall of said chamber having in it air-passageswmmunicating with'said chamber on opposite sides of the plane containingsaid straight line and the axis of saidsha ft-i In a. typewritingnachine, thec'oinbinat on with the carriage, of ca-rrlage ret'ardingmeans including a shaft arranged to be rotated by the carriage,aiidpneuxfiatic apf paratus comprisinga rotary device other cooperativedevice, said rotary device including 21 art which is-fast on said andhasa cy l' device containingan air chambe'rjin which said rotary deviceis confined, said 'cylirih drical surface" making contact. alongstraight line with the Wall of said chamb'e and being out ofcontact with'said wall on opposite sides of said straight line, and the Wall or saidchamber having in it a plurality of air-passages of different sizescommunicatin with said air-chamher on each side ofthe p ane containingsaid straight line and the axis of said 'shaft, and the devicecontaining said chamber having on it means for closing some or all ofsaid air-passages.

30. In a typewriting machine, the 'c0mb1- nation Withthe carriage, ofcarriage-retarding means including a shaft arranged to be maritalSin-face, nti-an o her rotated by the carriage, and pneumatic aprotatedby the carriage, and pneumatic apshaft and has a cy indrical surface andin- -said rotary device is'confined, said cylinstraight line with'thewall of said chamber side: of the plane containing said straight nationwith the carriage, of carriage-retardparstus conun'ising twocotiperative air-compr sing devices, one of these devices-com taining anair-chamber, and the other being confined in said chamber and includingrelatively mo able parts, one of which'has a cy. liudrical surface whichmakes contact along a straight line with the wall of said chamber andwhich is out of contact with said wall on opposite sides of saidstraight line, and one of said devices being connected with and movableby said shaft, said apparatus also comprising means adjustable by handand ii'ective to vary the resistance exerted on the carriage.

31. In a typewriting machine, the combination with the carriage, ofcarriage-retarding inegais including a shaftarranged to. be

paratus COlllpl'iSlYlg a rotary device and'another coiiperative device,said rotary device including a slotted art which 1s fast on said cluding a wing movable inward and outward 1n the slot-'m said slottedpart, and the other dewcecontaining an air-chamber in which.

drical" surface making contact along a and being out of contact withsaid wall :on opposite sidesjo'f-said straight line, and the wall ofsaid 'cha'mberhaving in it air-passages communicating' with saidchamber; on oppositesides of, the plane containing said straight'line "dthe axis of said shaft.

32. In a typewriting' machine, the combination with t j carriage, ofcarriage-retarding ineansi-ncniding a shaft arranged to be rotated bythe carriage, and pneumatic apparatus comprising a rotary device'andancluding a wing movable inward and outward on the slot of said slottedpart, and the other device containing an air-chamber in which saidrotary device is confined, said cylindrical surface making contact alonga straight line with the wall of said chamber and being out of contactwith said Well on opposite sides of said straight line, and the wallef'said rffl'lPliHbQl' having in it a plurality of air-passages ofdifferent sizes com-- municating with said air-chamber on, each' lineand the axis of said shaft,'and the device containing id chamber havingon it'means for closing some or all of said air-passages.

33. In a typewriting machine, the-bombiing means including a shafta-rrangedto'be rotated by the carriage, and pneumatic apparatuscomprising two coii 'ierative devices, one of these devices includinga-part which" v eluding a' pair of spring pressed wings mov able inwagela-nddutwarcl on the body of the device and 'in contact with the otherdevice, and one of said devices containing an air chamber inwhich theother device confined.

34. In a. typewriting machine, the combination with the carriage, ofcarriage-retardtarding means including a shaft arranged to.

be rotated by the carriage, and pneumatic apparatus comprising twocoiiperative devlces, one of these devices containing an airchdmber,and-the other being confined in s'ai dbhamber and including a slottedpart with a cylindrical surface which makes contact along a straightline with the wall of said chamber and which is out of contact with saidwall on 'opposite sides of said straightline and including a pair ofspring pressed wings movable inward and outward in the slots of saidslotted part, and one of said devices being connected with and movablebysaid s'ha 36. In a 'typewriting machine, the combination with thecarriage, of carriage-retarding means including a shaft arranged to berotated by the carriage, and pneumatic. -apparatus comprising a rotarydeyiceafnd" 'another cotiperative device, said rotary de vice includinga slotted part which isfast on said shaft and has a cylindrical surfaceand including a pair of spring-pressed wings movable inward and outwardin the slots of said slotted part, and the other device containing anair-chamber in which, said rotary-device is confined, said cylindricalsur-.

face making contact along a straight line with the wall of said chamberand being, out of contact withsaid'wall on opposite sides of. saidstraight line, and the: wall of said chamber having in it air passagescommunicating with said chamber on opposite sides ofthe plane containingsaid straight line-and the axis of said'shaft.

37. In a typewriting machine, the combination with the carriage, ofcarriage-retarding means includinga shaft arranged to .be rotated by thecarriage, and pneumatic apparatus comprising a rotary device andanother, cooperative device, said rotary device including a. slottedpart which is fast is fast onsaid shaft, and one of them in on saidshaft and has a cylindrical surface and including a pair ofspring-pressed wings movable inward and outward in the slots of saidslotted part, and the other device containing an air-chamber in whichsaid rotar device is confined, said cylindrical surface making contactalong a straightlinc with the Wall of said chamber-and being out ot.contact with said wall on opposite sides of said straight line, and'inewall of said chamber having in it a-plurality of air passages ofditierent' sizes communicating with said air-chamber on each side of theplane containing said straight line and the axis of said shaft, and thedevice containing said chamber having on it means for closing someoiuall ofsaid aii passages.

238.11) a typeivritingmachine, the combination with the carriage, ofcarriage-retar-ding means including a shaft, a pinion fast on saidshaft, and pneumatic appa 'atns comprising a rotar v device and anothercooperative device, said rotary device including a part which fast onsaid shaft, and the, other device being pivoted to a. fixed support andhaving in it a bearing for said shaft and containing an air-chamberwhose wall surrounds and makes contact with said rotary device at theends and from end to end of each of said devices and bcing movahle onits pivotal axis to engage said pinion with and to disengage it from thecarriage.

35). In a typcwriting machine, the combination with the carriage, ofcarriage-retarding means including a shaft, a pinion fast on said shaft,and pneumatic apparatus comprising a rotary device and anothercooperative device, said rotary device including a part which is fast onsaid shaft, and a wingmovable inward and outward on the other part ofthe rotarv device, and the other has a c tion with the carriage, ofcarriage-retarding means including a shaft, a pinion fast on said Shift,and pneumatic apparatus com prising a rotary device and anothercooperative derice, said rotary device including a part which is fast onsaid shaft and has a cylindrical surface, and the other device beingpivoted to a fixed support and having in it a hearing for said shaft andbeing movable on its pivotal axis to engage said pinion with and todisengage it from the carriage and containing an air-chamber in whichsaid rotary device is confined, said cylindrical surface making contactalong a straight line with the wall of said chamber and being out ofcontact with said Wallon opposite sides of said straight line.

425111 a typewriting machine, the coinhination with the carriage, ofcarriage-retar jling means including a shaft, a pinion fast on saidshatt, and pneumatic ap arati'is comprising a rotary device and anot ercoopeative device, said rotary device including a part which is fast onsaid shaft and idrical snrt'ace, and the other device being pivoted to afixed support and having in it a hearing for saidshaft and being movableon its pivotal axis to engage said pinion with and to disengage it fromthe carriage and containing an air-chamber in which said rotary deviceis confined, said cylindrical surface making contact along astraightline with the wall of said chamber and being out of contact.with said Wall on opposite sides of said straight line, and the W3 ll ofsaid chamber having in it, air-pasconmmnicating with said chain-her onopposite sides of the plane containing said straight line and the axisof said shaft.

43. in a typewriting mach-inc, the comsaid chamber having in itair-passages commun-icating with said chamber on opposite sides of theplane containing said straight line and the axis of said shat't.

ahlln a typ'ewriting machine, the combination with the carriage, ofcarriage-retarding means including a shaft, a pinion last on said shaft,and pneumatic apparatus comprising a rotary device including a.slottedpart which is faston said shaft and has a cylindrical surface andincluding a pair of \spring pressed wings movable inward and outward inthe slots of said slotted part, and theother device being pivoted to afixed support and having in it a bearing for said shaft and beingmovable on its pivotal aais to engage said pinion with and to disengageit from the carriage and containing an airchamber in which said rotarydevice is coilfined, said cylindrical surface making contact along astraight line with the wall of said chamber and being out. of contactwith said wall on opposite sides of said straight line, and said wingsalso making contact with thewall of said chamber.

4 In a typewriting machine, the combination with the carriage, ofcarriage-retardiug means including a shaft, a pinion last on vaid shaft,and pneumatic apparatus comprising a rotary device including a slottedpart which is fast on said shaft and has a c -'lindrical surface andincluding'a pair ofspring pressed wings movable inward and outward inthe slots of said slotted part, and the other device being pivoted to afixed Support and having in it a bearing for said shatt and beingmovable on its pivotal axis 'to engage said pinion with and to disengageit from the carriage and containingan air-chamber in which said rotarydevice. is confined, said cy'lindrical surface making contact along astraight line with thewall o't' said chamber and being out of contactwith said wall on oppositc sides ol the straight line, and said wingsalsomalcing contact with said wall, and the wall of said chamber havingin it. air-passagescomnnmieating with said chamber on opposite sides ofthe plane containing said straight. line. and the axis of said sl al't.

4-7. in a typewriting machine, the combination with the carriage, ofcarriage-retarding mcans including a shall arranged to be rotated by thecarri: go, and pneumatic apparatus comprising two cooperating airct ipresing devices, each in luding a cylindrical part. one of aid cylindricalparts being fast on said haft, and one of thent being hollow and containwthe oll1c1,and the inncr cylindrical .snr' ice of the outer part i gtangent to the cylindrical surface ol the inner part and recedingtherefrom on opposite sides ol the line oi contact, said no paratus alsocomprising mean adjustable by hand and elt'ec ive to vary the resistanceexerted on the carriage.

l-R. in a typewriting macl'iinc, the combination with the marriage. olcarriagwrctarding means including a shalt arranged to be rotated by thecarriage, and pncun ntic. apparatus cotnpri itm 'two cooperativedevices, ach including a cylimlrical part. one of said.Ifjflllltllltftll parts being last on said hall.

and one ol lhein being hollow and containing the other, and the innercylindrical surface of the outer part being tangent to the cylindricalsnr'l'acc oi the inncr'parl and receding therefrom on opposite sides ofthe line of contact. and the wall i said hollovtjparthaving in it anair-passage.

l5). In a typcwriting machine, the combination with the carriage, o'l'cat riagc-retarding means including a shaft arranged to be rotated bythe carriage, and pneinnatic ap paratus comprising a rotary device andanother cot'iperativc device. said rotary device including a cylindricalpart which is last on said shatt' and whose axis coincides with that ofthe shaft, and including a pair o'l wings movable inward and outward onsaid cylindrical part, and the other device include ing'ahollow-cylindrical part in which the rotary device is con lined, theinner cylitnlrical surface of the outer device being tangent to thecylindrical surface oi the rotary dt vice and receding therct'rom onopposite sides of the line of contact and being in contact 'with saidwings, and the wall ol' said hollow part. having in it an air-passage.

50. in a typewriting machine, the combination with the carriage.ot'carriagc-retarding means including a shalt arranged to be rotated bythe carriage, and pneumatic apparatus comprising a rotary device and.an-

other cooperative device, said rotary dcvicc .mcludmg a cylindrical partwhich is fast on said shaft and whose axis coincides with that of theshaft, and including a pair oi wings movable inward and outward on saidcylindrical part, and the other device including a hollow cyliin'lricalpart in which the rotary device is confined, the inner cylin; dricalsurlace of the outer device being tangent to the. cylindrical surl'aceof the rotary device and recedii-ig therefrom on opposite sides ot the.line of contact, and being tn other cooperative device,

contact with said wings, and the wall of said hollow part having in itan air-passage on each side of said line of contact.

51. In a typewriting machine, the combination with the carriage, ofcarriage-retarding means including a shaft arranged to be rotated by thecarriage, and pneumaticapparatus comprising a rotary device and an saidrotary device including 'a cylindrical part which is fast on said shaftand whose axis coincides with that ot't'he shaft, and including a .pairof wings movable inward and outward on said cylindrical part, and theother device in cluding a hollow cylindrical part in which the rotarydevice is confined, the inner cylindrical surface of the outer devicebeing tangent to the cylindrical surface ofthe rotary device andreceding therefrom on opposite sides of the line of contact and being incontact with said wings, and the wall of said hollow part having in it aplurality of air-passages of diii'erent sizes on each side of said lineof contact, and said hollow part having on it means for closing someorall of said air-passages.

In a typewi'iting machine, the combination with the :arriage,ofcarriage-retarding means including pneumatic apparatus having inletand outlet air-passages or ports of different sizes, and a sleevesurrounding a portion of said apparatus and having apertures adapted toregister with said ports, said sleeve being adjustable to differentpositions so as to open or close said ports. a

'In a t-ypewriting machine, the combination with the carriage, ofcarriage-retarding means including pneumatic apparatus,

having a cylindrical part containing inlet and outlet air-passages orports, and a sleeve surrounding said cylindrical part and hav ingapertures adapted to register with said ports, said sleeve being adaptedto be turned by hand so as to open and close said ports.

54.111 a typewriting machine, the combination with the carriage, orcarriage-retarding means comprising pneumatic apparatus including ahollow cylinder and a smaller cylinder inclosed within said hollowcylinder, said smaller cylinder having two slots opening substantiallyon opposite sides of said cylinder, and wings mounted in said slots andadapted to slide, in and out therein so as'to keep their outer edges incontact with the inner cylindrical surface of the outer cylinder.

In a typewriting-machine, the combination with the carriage, ofcarriage-retarding means comprising pneumatic apparatus including anouter hollow cylinder and a smaller cylinder inclosed within said hollowcylinder, said smaller cylinder having two slots substantially paralleland on opposite sides of the axis of the cylinder and opening onsubstantiallylopposite sides of the cylinder, and sliding wings mountedin said slots.

56. In a typewriting machine, the combination with the carriage, ofcarriage-retarding means comprising pneumatic apparatus including anouter hollow cylinder and a smaller cylinder inclosed within said outercylinder, said smaller cylinder having a slot therein, and a hole of adiameter greater than the width of the slot, and so positioned withreference to the slot that it cuts one wall of said slot but not theother, a slide mounted in said slot, and a coiled spring mounted in saidhole and pressing on said slide.

57. In a typewriting machine, the. combination with the carriage, ofcarriage-retarding means comprising pneumatic apparatus having acylindrical part, one or more airpassages or ports in said cylindricalpart, a sleeve surrounding said cylindrical part and adjustable thereonand having one or more apertures adapted to register with said port orports, and a screw plug closing one end of said cylinderand retainingsaid adjustable sleeve in position.

58. In a typewriting machine, the combination with the carriage, ofcarriage-retarding means comprising pneumatic apparatus having one ormore ports, a sleeve adjustable by hand and having one or more aperturesadapted to register with said port or ports in order to vary theresistance offered by said apparatus, and a scale and pointer toindicate the diti'erent positions to which said sleeve may be adjusted.J

Signed at Syracuse, in the county of Onondaga, and State of New York,\this 23rd day of February A. D. 1906.

H ER BER-'1 ll. STEELE.

\Vitnesses \V. J. LOGAN, JonN S. l\lrronnm..

